16222020 has 48 divisors (see below), whose sum is σ = 46992960. Its totient is φ = 4176256.

The previous prime is 16222013. The next prime is 16222027. The reversal of 16222020 is 2022261.

It is an interprime number because it is at equal distance from previous prime (16222013) and next prime (16222027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (16222027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2922 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (979020).

Almost surely, 2^16222020 is an apocalyptic number.

16222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16222020 is an abundant number, since it is smaller than the sum of its proper divisors (30770940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16222020 is a wasteful number, since it uses less digits than its factorization.

16222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9364 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 16222020 is about 4027.6568870747. The cubic root of 16222020 is about 253.1443920519.

Adding to 16222020 its reverse (2022261), we get a palindrome (18244281).

The spelling of 16222020 in words is "sixteen million, two hundred twenty-two thousand, twenty".